JPS6030925Y2 - Structure of dust exhaust section of threshing sorting device - Google Patents

Description

[Detailed description of the invention] The present invention provides a cross-flow fan for dust removal in which one end of a rotating support shaft is a transmission case and the other end is supported by a side plate of the threshing section. Regarding the structure of the dust removal part of the threshing sorting device, which is equipped with left and right sheet metal wrapping prevention devices that prevent waste straw from wrapping around the parts, the wrapping prevention devices can prevent waste straw from wrapping around the waste straw. Even if it gets between the preventer and the transmission case wall or the side plate of the threshing unit, it will not be retained there and will be easily discharged, and the right and left wrapping preventive devices are designed with a rational structure so that it can be easily discharged from the side plate of the threshing unit. The purpose is to improve the support strength of the support shaft while making it easier to manufacture with less material.

Next, embodiments of the present invention will be described in detail based on the drawings.

Below the handling chamber 2, in which the handling cylinder 1 is mounted on an axis, liquid is processed in the handling chamber 2 through the cooperation of specific gravity sorting by the swinging sorting plate 3 and wind sorting by wind-selecting air supplied from the winnower 4. A sorting section 5 for sorting and processing the materials is provided to constitute a threshing section 6, and
A dust exhaust section 7 is provided at the rear upper part of the sorting section 5 to suck straw waste and other dust from the threshing section 6 and discharge it to the outside. A threshing and sorting device 9 is provided to thresh the grains and to sort and collect the grains.

To configure the dust removal section 7, one end side of the rotary support 10 is pivotally supported on a transmission case connected to one side 11b of the threshing section side plates 11a and llb, and the other end side is supported by the threshing section side plates 1.
A dust removal cross-flow fan 13 is provided on the other side 11a of 1c and llb, and the fan 13 has an arcuate surface centered on the axis of the rotating support shaft 10, and one of the fan 13 is A discharge port 14 that communicates with the threshing section 6 and goes to the outside of the machine is provided on the other side to create a dust exhaust path R from the inside of the threshing section 6 to the outside of the machine.
It is organized by forming the following.

The fan 13 is supported by plate-shaped support members 15.15 made of sheet metal and bent toward the husband, which are attached near both left and right ends of the rotating support shaft 10, respectively. 15 in a state of being inserted into each recessed part 16, and
Anti-wrapping devices 18a and 18b are provided so that the rising portion 17 of the same edge is located on the side of the threshing section 6 of the dust removal path R, and the removal straw such as relatively long cut straw that is sucked together with dust is removed by the fan. This is designed to prevent the rotary support shaft 10 from wrapping around the parts corresponding to both ends of the dust removal path R, which are inserted between both ends of the dust removal path R and the threshing section side plates 11a and 11b.

Lower case member 19 forming the rotating peripheral surface of fan 13
is made of a bent sheet metal, and forms a concave space S on the side of the discharge port 14, and also integrally forms the lower guide surface of the discharge port 14, and causes turbulent flow in the concave space S. The structure is such that the suction dust is efficiently discharged toward the dust exhaust port 14 without causing the suction dust to rotate together.

Further, a reinforcing plate 20 is installed across the back surface of the terminal end of the lower guide surface and the back surface of the recessed space S, so as to increase the shape retention strength of the case member 19.

The left and right winding preventers 18a and 18b, when put together, form a dish-shaped member having a hole 21 at the center of the bottom through which the rotational shaft 10 is inserted, and are a dish-shaped member having a hole 21 at the center. In addition to press forming with sheet metal,
The structure is such that one side is provided with the hole 21 and then divided, so that the left and right winding prevention tools 18aiab can be manufactured at once.

The anti-wrapping tool 18a having the hole 21 is fitted onto the rotating shaft 10, and is attached to the side plate 11a of the threshing section by collinear bolts 23 together with the member 22 for bearing the rotating shaft 10 there. This is designed to improve the support strength of the supporting shaft 11a to the support shaft 10.

On the other hand, the winding preventer 18b without the hole 21 is attached to the transmission case 1.
2 is attached to the threshing side plate 11b in a state that it is spaced apart from the support shaft 10.

In summary, the present invention provides the structure of the dust exhaust section of the threshing sorting device officially registered, in which the left and right anti-wrapping tools 18a*1
8b, and when they are put together, the rotation support shaft 1 is located at the center of the bottom.
The side of the winding prevention tools 18a and 18b provided with the hole 21 is formed so as to have a dish shape with a hole 21 through which the wire is inserted, and the hole 21 is provided in one of the wrapping prevention tools 18a. The wrapping prevention device 18a is attached to the threshing section side plate 1.
1a, and the winding preventer 18b on the side not provided with the hole 21 is attached to the transmission case 12.

In other words, since the left and right wrapping preventers 18a and 18b are each formed into a dish-shaped piece, the installation edge portion 17 prevents the waste straw from entering the portions corresponding to both ends of the dust removal path of the support shaft 10. Even if straw does get in, it can be easily discharged through the divided notch, and retention there can be effectively prevented by wrapping the waste straw around the waist.

Moreover, in order to manufacture the left and right winding preventers 18a and 18b, it is sufficient to integrally mold a dish-shaped piece by press working and cut the hole 21 on one side. Since the anti-wrapping device 18a is attached to the threshing unit side plate 11a, the threshing unit side plate 11a, which is made of sheet metal or the like and has inherently lower strength than the transmission case 12,
The support shaft 10 can be supported and its support strength can be increased in cooperation with the wrapping prevention tool 18a, and the left and right wrapping prevention tools 18a can improve the support strength of the support shaft 10 with respect to the threshing section side plate 11a as a whole. , 18b can be easily manufactured using less materials.

[Brief explanation of drawings]

The drawings show an embodiment of the structure of the dust exhaust part of the threshing and sorting device according to the present invention, and FIG. 1 is an overall longitudinal sectional view of the threshing and sorting device, FIG. 2 is a sectional view taken along the line The figure is an enlarged side view of the main part, and FIG. 4 is a perspective view showing the left and right winding prevention devices. 10...Rotating shaft, lla...Threshing section side plate, 12...Transmission case, 13...
Fan, 18a, 18b... Winding prevention device, 21
...hole, R....dust exhaust route.

Claims (1)

[Scope of utility model registration request] A cross-flow fan 13 for removing dust, which has one end of the rotating shaft 10 supported by the transmission case 12 and the other end supported by the threshing section side plate 11a.
left and right sheet metal wrapping preventers 18a for preventing waste straw from wrapping around portions corresponding to both ends of the dust removal path R of the rotating support shaft 10;
18b is a dust exhaust part structure of a threshing sorting device attached,
When the left and right winding preventers 18a and 18b are put together, a hole 21 is formed in the center of the bottom through which the rotational support shaft 10 is inserted.
The winding prevention tool 18a on the side having the hole 21 of the winding prevention tools 18at and 18b is formed so that the hole 21 is provided in one of the winding prevention tools 18a. A wrapping prevention device 18 attached to the threshing section side plate 11a and on the side not provided with the hole 21
A dust exhaust part structure of a threshing sorting device, characterized in that b is attached to the transmission case 12.